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Elementary Dictionary
       

sub·sti·tute

substitute

 
 
pronunciation:
suhb stih tut
parts of speech:
noun, verb
part of speech: noun
definition: A substitute is a person or thing that takes the place of another. For example, some people use honey as a substitute for sugar.
Our teacher was sick last week, so we had a substitute. I thought she was nice, but some kids tried to play tricks on her.
synonyms:
alternate
 
part of speech: verb
inflections: substitutes, substituting, substituted
definition 1: When you substitute something, you put or use it in place of another person or thing.
The cook substituted olive oil for butter in the recipe.
similar words:
change, exchange, replace
definition 2: When someone substitutes, they put themselves in the place of another.
The assistant principal substituted for our usual teacher today.A different actress is substituting in the lead role in tonight's performance of the play.
similar words:
cover
derivations: substitutable (adj.), substitutional (adj.), substituter (n.), substitution (n.)